When the name of the suspected Times Square bomber, Faisal Shahzad was revealed, one of the first things reporters did to find more information and a picture was go to Facebook. Sure enough, Faisal Shahzad had an account.

Nigerian terror suspect Umar Farouq Abdulmutallab, who is charged with trying to blow up a U.S.-bound flight last December after training with al Qaeda in Yemen, also had a Facebook account.

There is little information about the role social network websites might play in the radicalization and recruitment of terrorists, but the FBI is seeing an increase in the use of such websites by radical groups.